Failure analysis of a frangible composite cover: A transient-dynamics study. (August 2017)

• Record Type: Journal Article
• Authors: Cai, Deng'an; Zhou, Guangming; Qian, Yuan; Silberschmidt, Vadim V
• Is Part Of: Journal of composite materials. Volume 51:Number 18(2017)
• Page Start: 2607
• Page End: 2617
• Publication Date: 2017-08
• Subjects: Composite material -- frangible cover -- transient-dynamics model -- approximate Riemann algorithm -- failure analysis; Composite materials -- Periodicals; Composites -- Périodiques; 620.118
• DOI: 10.1177/0021998316673223
• Languages: English
• ISSNs: 0021-9983

Abstract

A transient-dynamics model based on the approximate Riemann algorithm is proposed for the failure analysis of a frangible composite canister cover. The frangible cover, manufactured with a traditional manual lay-up method, is designed to conduct a simulated missile launch test using a specially developed test device. Deformation of the cover's centre is determined using a transient-dynamics finite element model; failure pressure for the frangible cover is obtained based on a failure criterion and compared with simulated experimental results. Weak-zone position of the frangible cover has a significant effect on failure pressure compared to that of deformation of the cover's centre. With the same structure of the weak-zone, an increase in its height can first raise and then reduce the level of failure pressure of the frangible cover. Close agreements between the experimental and numerical results are observed.